commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2014 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "GrDashingEffect.h" |
| 9 | |
bsalomon | 7539856 | 2015-08-17 12:55:38 -0700 | [diff] [blame] | 10 | #include "GrBatchFlushState.h" |
joshualitt | fa2008f | 2015-04-29 11:32:05 -0700 | [diff] [blame] | 11 | #include "GrBatchTest.h" |
bsalomon | eb1cb5c | 2015-05-22 08:01:09 -0700 | [diff] [blame] | 12 | #include "GrCaps.h" |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 13 | #include "GrGeometryProcessor.h" |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 14 | #include "GrContext.h" |
| 15 | #include "GrCoordTransform.h" |
joshualitt | 5478d42 | 2014-11-14 16:00:38 -0800 | [diff] [blame] | 16 | #include "GrDefaultGeoProcFactory.h" |
egdaniel | e61c411 | 2014-06-12 10:24:21 -0700 | [diff] [blame] | 17 | #include "GrDrawTarget.h" |
egdaniel | 605dd0f | 2014-11-12 08:35:25 -0800 | [diff] [blame] | 18 | #include "GrInvariantOutput.h" |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 19 | #include "GrProcessor.h" |
egdaniel | e61c411 | 2014-06-12 10:24:21 -0700 | [diff] [blame] | 20 | #include "GrStrokeInfo.h" |
bsalomon | 72e3ae4 | 2015-04-28 08:08:46 -0700 | [diff] [blame] | 21 | #include "GrVertexBuffer.h" |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 22 | #include "SkGr.h" |
bsalomon | 16b9913 | 2015-08-13 14:55:50 -0700 | [diff] [blame] | 23 | #include "batches/GrVertexBatch.h" |
joshualitt | 5478d42 | 2014-11-14 16:00:38 -0800 | [diff] [blame] | 24 | #include "gl/GrGLGeometryProcessor.h" |
wangyix | 6af0c93 | 2015-07-22 10:21:17 -0700 | [diff] [blame] | 25 | #include "gl/GrGLFragmentProcessor.h" |
egdaniel | 2d721d3 | 2015-11-11 13:06:05 -0800 | [diff] [blame^] | 26 | #include "glsl/GrGLSLFragmentShaderBuilder.h" |
| 27 | #include "glsl/GrGLSLProgramBuilder.h" |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 28 | #include "glsl/GrGLSLProgramDataManager.h" |
egdaniel | 2d721d3 | 2015-11-11 13:06:05 -0800 | [diff] [blame^] | 29 | #include "glsl/GrGLSLVertexShaderBuilder.h" |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 30 | |
| 31 | /////////////////////////////////////////////////////////////////////////////// |
| 32 | |
egdaniel | e61c411 | 2014-06-12 10:24:21 -0700 | [diff] [blame] | 33 | // Returns whether or not the gpu can fast path the dash line effect. |
kkinnunen | 1899651 | 2015-04-26 23:18:49 -0700 | [diff] [blame] | 34 | bool GrDashingEffect::CanDrawDashLine(const SkPoint pts[2], const GrStrokeInfo& strokeInfo, |
| 35 | const SkMatrix& viewMatrix) { |
egdaniel | e61c411 | 2014-06-12 10:24:21 -0700 | [diff] [blame] | 36 | // Pts must be either horizontal or vertical in src space |
| 37 | if (pts[0].fX != pts[1].fX && pts[0].fY != pts[1].fY) { |
| 38 | return false; |
| 39 | } |
| 40 | |
| 41 | // May be able to relax this to include skew. As of now cannot do perspective |
| 42 | // because of the non uniform scaling of bloating a rect |
| 43 | if (!viewMatrix.preservesRightAngles()) { |
| 44 | return false; |
| 45 | } |
| 46 | |
kkinnunen | 261694c | 2015-05-05 08:00:10 -0700 | [diff] [blame] | 47 | if (!strokeInfo.isDashed() || 2 != strokeInfo.getDashCount()) { |
egdaniel | e61c411 | 2014-06-12 10:24:21 -0700 | [diff] [blame] | 48 | return false; |
| 49 | } |
| 50 | |
kkinnunen | 261694c | 2015-05-05 08:00:10 -0700 | [diff] [blame] | 51 | const SkScalar* intervals = strokeInfo.getDashIntervals(); |
| 52 | if (0 == intervals[0] && 0 == intervals[1]) { |
egdaniel | e61c411 | 2014-06-12 10:24:21 -0700 | [diff] [blame] | 53 | return false; |
| 54 | } |
| 55 | |
kkinnunen | d156d36 | 2015-05-18 22:23:54 -0700 | [diff] [blame] | 56 | SkPaint::Cap cap = strokeInfo.getCap(); |
egdaniel | e61c411 | 2014-06-12 10:24:21 -0700 | [diff] [blame] | 57 | // Current we do don't handle Round or Square cap dashes |
kkinnunen | 261694c | 2015-05-05 08:00:10 -0700 | [diff] [blame] | 58 | if (SkPaint::kRound_Cap == cap && intervals[0] != 0.f) { |
egdaniel | e61c411 | 2014-06-12 10:24:21 -0700 | [diff] [blame] | 59 | return false; |
| 60 | } |
| 61 | |
| 62 | return true; |
| 63 | } |
| 64 | |
| 65 | namespace { |
egdaniel | e61c411 | 2014-06-12 10:24:21 -0700 | [diff] [blame] | 66 | struct DashLineVertex { |
| 67 | SkPoint fPos; |
| 68 | SkPoint fDashPos; |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 69 | SkScalar fIntervalLength; |
| 70 | SkRect fRect; |
| 71 | }; |
| 72 | struct DashCircleVertex { |
| 73 | SkPoint fPos; |
| 74 | SkPoint fDashPos; |
| 75 | SkScalar fIntervalLength; |
| 76 | SkScalar fRadius; |
| 77 | SkScalar fCenterX; |
egdaniel | e61c411 | 2014-06-12 10:24:21 -0700 | [diff] [blame] | 78 | }; |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 79 | |
| 80 | enum DashAAMode { |
| 81 | kBW_DashAAMode, |
| 82 | kEdgeAA_DashAAMode, |
| 83 | kMSAA_DashAAMode, |
| 84 | |
| 85 | kDashAAModeCount, |
| 86 | }; |
egdaniel | e61c411 | 2014-06-12 10:24:21 -0700 | [diff] [blame] | 87 | }; |
| 88 | |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 89 | static void calc_dash_scaling(SkScalar* parallelScale, SkScalar* perpScale, |
| 90 | const SkMatrix& viewMatrix, const SkPoint pts[2]) { |
| 91 | SkVector vecSrc = pts[1] - pts[0]; |
| 92 | SkScalar magSrc = vecSrc.length(); |
| 93 | SkScalar invSrc = magSrc ? SkScalarInvert(magSrc) : 0; |
| 94 | vecSrc.scale(invSrc); |
| 95 | |
| 96 | SkVector vecSrcPerp; |
| 97 | vecSrc.rotateCW(&vecSrcPerp); |
| 98 | viewMatrix.mapVectors(&vecSrc, 1); |
| 99 | viewMatrix.mapVectors(&vecSrcPerp, 1); |
| 100 | |
| 101 | // parallelScale tells how much to scale along the line parallel to the dash line |
| 102 | // perpScale tells how much to scale in the direction perpendicular to the dash line |
| 103 | *parallelScale = vecSrc.length(); |
| 104 | *perpScale = vecSrcPerp.length(); |
| 105 | } |
| 106 | |
| 107 | // calculates the rotation needed to aligned pts to the x axis with pts[0] < pts[1] |
| 108 | // Stores the rotation matrix in rotMatrix, and the mapped points in ptsRot |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 109 | static void align_to_x_axis(const SkPoint pts[2], SkMatrix* rotMatrix, SkPoint ptsRot[2] = nullptr) { |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 110 | SkVector vec = pts[1] - pts[0]; |
| 111 | SkScalar mag = vec.length(); |
| 112 | SkScalar inv = mag ? SkScalarInvert(mag) : 0; |
| 113 | |
| 114 | vec.scale(inv); |
| 115 | rotMatrix->setSinCos(-vec.fY, vec.fX, pts[0].fX, pts[0].fY); |
| 116 | if (ptsRot) { |
| 117 | rotMatrix->mapPoints(ptsRot, pts, 2); |
| 118 | // correction for numerical issues if map doesn't make ptsRot exactly horizontal |
| 119 | ptsRot[1].fY = pts[0].fY; |
| 120 | } |
| 121 | } |
| 122 | |
| 123 | // Assumes phase < sum of all intervals |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 124 | static SkScalar calc_start_adjustment(const SkScalar intervals[2], SkScalar phase) { |
| 125 | SkASSERT(phase < intervals[0] + intervals[1]); |
| 126 | if (phase >= intervals[0] && phase != 0) { |
| 127 | SkScalar srcIntervalLen = intervals[0] + intervals[1]; |
| 128 | return srcIntervalLen - phase; |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 129 | } |
| 130 | return 0; |
| 131 | } |
| 132 | |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 133 | static SkScalar calc_end_adjustment(const SkScalar intervals[2], const SkPoint pts[2], |
egdaniel | e61c411 | 2014-06-12 10:24:21 -0700 | [diff] [blame] | 134 | SkScalar phase, SkScalar* endingInt) { |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 135 | if (pts[1].fX <= pts[0].fX) { |
| 136 | return 0; |
| 137 | } |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 138 | SkScalar srcIntervalLen = intervals[0] + intervals[1]; |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 139 | SkScalar totalLen = pts[1].fX - pts[0].fX; |
reed | 80ea19c | 2015-05-12 10:37:34 -0700 | [diff] [blame] | 140 | SkScalar temp = totalLen / srcIntervalLen; |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 141 | SkScalar numFullIntervals = SkScalarFloorToScalar(temp); |
egdaniel | e61c411 | 2014-06-12 10:24:21 -0700 | [diff] [blame] | 142 | *endingInt = totalLen - numFullIntervals * srcIntervalLen + phase; |
reed | 80ea19c | 2015-05-12 10:37:34 -0700 | [diff] [blame] | 143 | temp = *endingInt / srcIntervalLen; |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 144 | *endingInt = *endingInt - SkScalarFloorToScalar(temp) * srcIntervalLen; |
| 145 | if (0 == *endingInt) { |
| 146 | *endingInt = srcIntervalLen; |
| 147 | } |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 148 | if (*endingInt > intervals[0]) { |
| 149 | if (0 == intervals[0]) { |
commit-bot@chromium.org | ad88340 | 2014-05-19 14:43:45 +0000 | [diff] [blame] | 150 | *endingInt -= 0.01f; // make sure we capture the last zero size pnt (used if has caps) |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 151 | } |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 152 | return *endingInt - intervals[0]; |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 153 | } |
| 154 | return 0; |
| 155 | } |
| 156 | |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 157 | enum DashCap { |
| 158 | kRound_DashCap, |
| 159 | kNonRound_DashCap, |
| 160 | }; |
| 161 | |
| 162 | static int kDashVertices = 4; |
| 163 | |
| 164 | template <typename T> |
| 165 | void setup_dashed_rect_common(const SkRect& rect, const SkMatrix& matrix, T* vertices, int idx, |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 166 | SkScalar offset, SkScalar bloatX, SkScalar bloatY, SkScalar len, |
| 167 | SkScalar stroke) { |
| 168 | SkScalar startDashX = offset - bloatX; |
| 169 | SkScalar endDashX = offset + len + bloatX; |
| 170 | SkScalar startDashY = -stroke - bloatY; |
| 171 | SkScalar endDashY = stroke + bloatY; |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 172 | vertices[idx].fDashPos = SkPoint::Make(startDashX , startDashY); |
| 173 | vertices[idx + 1].fDashPos = SkPoint::Make(startDashX, endDashY); |
| 174 | vertices[idx + 2].fDashPos = SkPoint::Make(endDashX, endDashY); |
| 175 | vertices[idx + 3].fDashPos = SkPoint::Make(endDashX, startDashY); |
| 176 | |
| 177 | vertices[idx].fPos = SkPoint::Make(rect.fLeft, rect.fTop); |
| 178 | vertices[idx + 1].fPos = SkPoint::Make(rect.fLeft, rect.fBottom); |
| 179 | vertices[idx + 2].fPos = SkPoint::Make(rect.fRight, rect.fBottom); |
| 180 | vertices[idx + 3].fPos = SkPoint::Make(rect.fRight, rect.fTop); |
| 181 | |
| 182 | matrix.mapPointsWithStride(&vertices[idx].fPos, sizeof(T), 4); |
| 183 | } |
| 184 | |
| 185 | static void setup_dashed_rect(const SkRect& rect, void* vertices, int idx, |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 186 | const SkMatrix& matrix, SkScalar offset, SkScalar bloatX, |
| 187 | SkScalar bloatY, SkScalar len, SkScalar stroke, |
| 188 | SkScalar startInterval, SkScalar endInterval, SkScalar strokeWidth, |
| 189 | DashCap cap, const size_t vertexStride) { |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 190 | SkScalar intervalLength = startInterval + endInterval; |
| 191 | |
| 192 | if (kRound_DashCap == cap) { |
| 193 | SkASSERT(vertexStride == sizeof(DashCircleVertex)); |
| 194 | DashCircleVertex* verts = reinterpret_cast<DashCircleVertex*>(vertices); |
| 195 | |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 196 | setup_dashed_rect_common<DashCircleVertex>(rect, matrix, verts, idx, offset, bloatX, |
| 197 | bloatY, len, stroke); |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 198 | |
| 199 | SkScalar radius = SkScalarHalf(strokeWidth) - 0.5f; |
| 200 | SkScalar centerX = SkScalarHalf(endInterval); |
| 201 | |
| 202 | for (int i = 0; i < kDashVertices; i++) { |
| 203 | verts[idx + i].fIntervalLength = intervalLength; |
| 204 | verts[idx + i].fRadius = radius; |
| 205 | verts[idx + i].fCenterX = centerX; |
| 206 | } |
| 207 | |
| 208 | } else { |
| 209 | SkASSERT(kNonRound_DashCap == cap && vertexStride == sizeof(DashLineVertex)); |
| 210 | DashLineVertex* verts = reinterpret_cast<DashLineVertex*>(vertices); |
| 211 | |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 212 | setup_dashed_rect_common<DashLineVertex>(rect, matrix, verts, idx, offset, bloatX, |
| 213 | bloatY, len, stroke); |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 214 | |
| 215 | SkScalar halfOffLen = SkScalarHalf(endInterval); |
| 216 | SkScalar halfStroke = SkScalarHalf(strokeWidth); |
| 217 | SkRect rectParam; |
| 218 | rectParam.set(halfOffLen + 0.5f, -halfStroke + 0.5f, |
| 219 | halfOffLen + startInterval - 0.5f, halfStroke - 0.5f); |
| 220 | for (int i = 0; i < kDashVertices; i++) { |
| 221 | verts[idx + i].fIntervalLength = intervalLength; |
| 222 | verts[idx + i].fRect = rectParam; |
| 223 | } |
| 224 | } |
egdaniel | e61c411 | 2014-06-12 10:24:21 -0700 | [diff] [blame] | 225 | } |
| 226 | |
joshualitt | 5478d42 | 2014-11-14 16:00:38 -0800 | [diff] [blame] | 227 | static void setup_dashed_rect_pos(const SkRect& rect, int idx, const SkMatrix& matrix, |
| 228 | SkPoint* verts) { |
| 229 | verts[idx] = SkPoint::Make(rect.fLeft, rect.fTop); |
| 230 | verts[idx + 1] = SkPoint::Make(rect.fLeft, rect.fBottom); |
| 231 | verts[idx + 2] = SkPoint::Make(rect.fRight, rect.fBottom); |
| 232 | verts[idx + 3] = SkPoint::Make(rect.fRight, rect.fTop); |
| 233 | matrix.mapPoints(&verts[idx], 4); |
| 234 | } |
egdaniel | e61c411 | 2014-06-12 10:24:21 -0700 | [diff] [blame] | 235 | |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 236 | |
| 237 | /** |
| 238 | * An GrGeometryProcessor that renders a dashed line. |
| 239 | * This GrGeometryProcessor is meant for dashed lines that only have a single on/off interval pair. |
| 240 | * Bounding geometry is rendered and the effect computes coverage based on the fragment's |
| 241 | * position relative to the dashed line. |
| 242 | */ |
| 243 | static GrGeometryProcessor* create_dash_gp(GrColor, |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 244 | DashAAMode aaMode, |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 245 | DashCap cap, |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 246 | const SkMatrix& localMatrix, |
| 247 | bool usesLocalCoords); |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 248 | |
bsalomon | abd30f5 | 2015-08-13 13:34:48 -0700 | [diff] [blame] | 249 | class DashBatch : public GrVertexBatch { |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 250 | public: |
reed | 1b55a96 | 2015-09-17 20:16:13 -0700 | [diff] [blame] | 251 | DEFINE_BATCH_CLASS_ID |
| 252 | |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 253 | struct Geometry { |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 254 | SkMatrix fViewMatrix; |
| 255 | SkMatrix fSrcRotInv; |
| 256 | SkPoint fPtsRot[2]; |
| 257 | SkScalar fSrcStrokeWidth; |
| 258 | SkScalar fPhase; |
| 259 | SkScalar fIntervals[2]; |
| 260 | SkScalar fParallelScale; |
| 261 | SkScalar fPerpendicularScale; |
reed | 1b55a96 | 2015-09-17 20:16:13 -0700 | [diff] [blame] | 262 | GrColor fColor; |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 263 | }; |
| 264 | |
bsalomon | abd30f5 | 2015-08-13 13:34:48 -0700 | [diff] [blame] | 265 | static GrDrawBatch* Create(const Geometry& geometry, SkPaint::Cap cap, DashAAMode aaMode, |
| 266 | bool fullDash) { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 267 | return new DashBatch(geometry, cap, aaMode, fullDash); |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 268 | } |
| 269 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 270 | const char* name() const override { return "DashBatch"; } |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 271 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 272 | void getInvariantOutputColor(GrInitInvariantOutput* out) const override { |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 273 | // When this is called on a batch, there is only one geometry bundle |
| 274 | out->setKnownFourComponents(fGeoData[0].fColor); |
| 275 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 276 | void getInvariantOutputCoverage(GrInitInvariantOutput* out) const override { |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 277 | out->setUnknownSingleComponent(); |
| 278 | } |
| 279 | |
bsalomon | e46f9fe | 2015-08-18 06:05:14 -0700 | [diff] [blame] | 280 | SkSTArray<1, Geometry, true>* geoData() { return &fGeoData; } |
| 281 | |
| 282 | private: |
reed | 1b55a96 | 2015-09-17 20:16:13 -0700 | [diff] [blame] | 283 | DashBatch(const Geometry& geometry, SkPaint::Cap cap, DashAAMode aaMode, bool fullDash) |
| 284 | : INHERITED(ClassID()) { |
bsalomon | e46f9fe | 2015-08-18 06:05:14 -0700 | [diff] [blame] | 285 | fGeoData.push_back(geometry); |
| 286 | |
| 287 | fBatch.fAAMode = aaMode; |
| 288 | fBatch.fCap = cap; |
| 289 | fBatch.fFullDash = fullDash; |
| 290 | |
| 291 | // compute bounds |
| 292 | SkScalar halfStrokeWidth = 0.5f * geometry.fSrcStrokeWidth; |
| 293 | SkScalar xBloat = SkPaint::kButt_Cap == cap ? 0 : halfStrokeWidth; |
| 294 | fBounds.set(geometry.fPtsRot[0], geometry.fPtsRot[1]); |
| 295 | fBounds.outset(xBloat, halfStrokeWidth); |
| 296 | |
| 297 | // Note, we actually create the combined matrix here, and save the work |
| 298 | SkMatrix& combinedMatrix = fGeoData[0].fSrcRotInv; |
| 299 | combinedMatrix.postConcat(geometry.fViewMatrix); |
| 300 | combinedMatrix.mapRect(&fBounds); |
| 301 | } |
| 302 | |
bsalomon | 91d844d | 2015-08-10 10:47:29 -0700 | [diff] [blame] | 303 | void initBatchTracker(const GrPipelineOptimizations& opt) override { |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 304 | // Handle any color overrides |
bsalomon | 91d844d | 2015-08-10 10:47:29 -0700 | [diff] [blame] | 305 | if (!opt.readsColor()) { |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 306 | fGeoData[0].fColor = GrColor_ILLEGAL; |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 307 | } |
bsalomon | 91d844d | 2015-08-10 10:47:29 -0700 | [diff] [blame] | 308 | opt.getOverrideColorIfSet(&fGeoData[0].fColor); |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 309 | |
| 310 | // setup batch properties |
bsalomon | 91d844d | 2015-08-10 10:47:29 -0700 | [diff] [blame] | 311 | fBatch.fColorIgnored = !opt.readsColor(); |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 312 | fBatch.fColor = fGeoData[0].fColor; |
bsalomon | 91d844d | 2015-08-10 10:47:29 -0700 | [diff] [blame] | 313 | fBatch.fUsesLocalCoords = opt.readsLocalCoords(); |
| 314 | fBatch.fCoverageIgnored = !opt.readsCoverage(); |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 315 | } |
| 316 | |
| 317 | struct DashDraw { |
| 318 | SkScalar fStartOffset; |
| 319 | SkScalar fStrokeWidth; |
| 320 | SkScalar fLineLength; |
| 321 | SkScalar fHalfDevStroke; |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 322 | SkScalar fDevBloatX; |
| 323 | SkScalar fDevBloatY; |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 324 | bool fLineDone; |
| 325 | bool fHasStartRect; |
| 326 | bool fHasEndRect; |
| 327 | }; |
| 328 | |
bsalomon | 7539856 | 2015-08-17 12:55:38 -0700 | [diff] [blame] | 329 | void onPrepareDraws(Target* target) override { |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 330 | int instanceCount = fGeoData.count(); |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 331 | SkPaint::Cap cap = this->cap(); |
joshualitt | e494a58 | 2015-08-03 09:32:36 -0700 | [diff] [blame] | 332 | bool isRoundCap = SkPaint::kRound_Cap == cap; |
| 333 | DashCap capType = isRoundCap ? kRound_DashCap : kNonRound_DashCap; |
joshualitt | df0c557 | 2015-08-03 11:35:28 -0700 | [diff] [blame] | 334 | |
| 335 | SkAutoTUnref<const GrGeometryProcessor> gp; |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 336 | if (this->fullDash()) { |
joshualitt | df0c557 | 2015-08-03 11:35:28 -0700 | [diff] [blame] | 337 | gp.reset(create_dash_gp(this->color(), this->aaMode(), capType, this->viewMatrix(), |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 338 | this->usesLocalCoords())); |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 339 | } else { |
| 340 | // Set up the vertex data for the line and start/end dashes |
joshualitt | df0c557 | 2015-08-03 11:35:28 -0700 | [diff] [blame] | 341 | using namespace GrDefaultGeoProcFactory; |
| 342 | Color color(this->color()); |
| 343 | Coverage coverage(this->coverageIgnored() ? Coverage::kNone_Type : |
| 344 | Coverage::kSolid_Type); |
| 345 | LocalCoords localCoords(this->usesLocalCoords() ? LocalCoords::kUsePosition_Type : |
| 346 | LocalCoords::kUnused_Type); |
| 347 | gp.reset(CreateForDeviceSpace(color, coverage, localCoords, this->viewMatrix())); |
| 348 | } |
| 349 | |
| 350 | if (!gp) { |
| 351 | SkDebugf("Could not create GrGeometryProcessor\n"); |
| 352 | return; |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 353 | } |
| 354 | |
bsalomon | 7539856 | 2015-08-17 12:55:38 -0700 | [diff] [blame] | 355 | target->initDraw(gp, this->pipeline()); |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 356 | |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 357 | // useAA here means Edge AA or MSAA |
| 358 | bool useAA = this->aaMode() != kBW_DashAAMode; |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 359 | bool fullDash = this->fullDash(); |
| 360 | |
| 361 | // We do two passes over all of the dashes. First we setup the start, end, and bounds, |
| 362 | // rectangles. We preserve all of this work in the rects / draws arrays below. Then we |
| 363 | // iterate again over these decomposed dashes to generate vertices |
| 364 | SkSTArray<128, SkRect, true> rects; |
| 365 | SkSTArray<128, DashDraw, true> draws; |
| 366 | |
| 367 | int totalRectCount = 0; |
joshualitt | d0f5457 | 2015-03-02 12:00:52 -0800 | [diff] [blame] | 368 | int rectOffset = 0; |
bsalomon | b5238a7 | 2015-05-05 07:49:49 -0700 | [diff] [blame] | 369 | rects.push_back_n(3 * instanceCount); |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 370 | for (int i = 0; i < instanceCount; i++) { |
| 371 | Geometry& args = fGeoData[i]; |
| 372 | |
| 373 | bool hasCap = SkPaint::kButt_Cap != cap && 0 != args.fSrcStrokeWidth; |
| 374 | |
| 375 | // We always want to at least stroke out half a pixel on each side in device space |
| 376 | // so 0.5f / perpScale gives us this min in src space |
| 377 | SkScalar halfSrcStroke = |
| 378 | SkMaxScalar(args.fSrcStrokeWidth * 0.5f, 0.5f / args.fPerpendicularScale); |
| 379 | |
| 380 | SkScalar strokeAdj; |
| 381 | if (!hasCap) { |
| 382 | strokeAdj = 0.f; |
| 383 | } else { |
| 384 | strokeAdj = halfSrcStroke; |
| 385 | } |
| 386 | |
| 387 | SkScalar startAdj = 0; |
| 388 | |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 389 | bool lineDone = false; |
| 390 | |
| 391 | // Too simplify the algorithm, we always push back rects for start and end rect. |
| 392 | // Otherwise we'd have to track start / end rects for each individual geometry |
joshualitt | d0f5457 | 2015-03-02 12:00:52 -0800 | [diff] [blame] | 393 | SkRect& bounds = rects[rectOffset++]; |
| 394 | SkRect& startRect = rects[rectOffset++]; |
| 395 | SkRect& endRect = rects[rectOffset++]; |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 396 | |
| 397 | bool hasStartRect = false; |
| 398 | // If we are using AA, check to see if we are drawing a partial dash at the start. If so |
| 399 | // draw it separately here and adjust our start point accordingly |
| 400 | if (useAA) { |
| 401 | if (args.fPhase > 0 && args.fPhase < args.fIntervals[0]) { |
| 402 | SkPoint startPts[2]; |
| 403 | startPts[0] = args.fPtsRot[0]; |
| 404 | startPts[1].fY = startPts[0].fY; |
| 405 | startPts[1].fX = SkMinScalar(startPts[0].fX + args.fIntervals[0] - args.fPhase, |
| 406 | args.fPtsRot[1].fX); |
| 407 | startRect.set(startPts, 2); |
| 408 | startRect.outset(strokeAdj, halfSrcStroke); |
| 409 | |
| 410 | hasStartRect = true; |
| 411 | startAdj = args.fIntervals[0] + args.fIntervals[1] - args.fPhase; |
| 412 | } |
| 413 | } |
| 414 | |
| 415 | // adjustments for start and end of bounding rect so we only draw dash intervals |
| 416 | // contained in the original line segment. |
| 417 | startAdj += calc_start_adjustment(args.fIntervals, args.fPhase); |
| 418 | if (startAdj != 0) { |
| 419 | args.fPtsRot[0].fX += startAdj; |
| 420 | args.fPhase = 0; |
| 421 | } |
| 422 | SkScalar endingInterval = 0; |
| 423 | SkScalar endAdj = calc_end_adjustment(args.fIntervals, args.fPtsRot, args.fPhase, |
| 424 | &endingInterval); |
| 425 | args.fPtsRot[1].fX -= endAdj; |
| 426 | if (args.fPtsRot[0].fX >= args.fPtsRot[1].fX) { |
| 427 | lineDone = true; |
| 428 | } |
| 429 | |
| 430 | bool hasEndRect = false; |
| 431 | // If we are using AA, check to see if we are drawing a partial dash at then end. If so |
| 432 | // draw it separately here and adjust our end point accordingly |
| 433 | if (useAA && !lineDone) { |
| 434 | // If we adjusted the end then we will not be drawing a partial dash at the end. |
| 435 | // If we didn't adjust the end point then we just need to make sure the ending |
| 436 | // dash isn't a full dash |
| 437 | if (0 == endAdj && endingInterval != args.fIntervals[0]) { |
| 438 | SkPoint endPts[2]; |
| 439 | endPts[1] = args.fPtsRot[1]; |
| 440 | endPts[0].fY = endPts[1].fY; |
| 441 | endPts[0].fX = endPts[1].fX - endingInterval; |
| 442 | |
| 443 | endRect.set(endPts, 2); |
| 444 | endRect.outset(strokeAdj, halfSrcStroke); |
| 445 | |
| 446 | hasEndRect = true; |
| 447 | endAdj = endingInterval + args.fIntervals[1]; |
| 448 | |
| 449 | args.fPtsRot[1].fX -= endAdj; |
| 450 | if (args.fPtsRot[0].fX >= args.fPtsRot[1].fX) { |
| 451 | lineDone = true; |
| 452 | } |
| 453 | } |
| 454 | } |
| 455 | |
| 456 | if (startAdj != 0) { |
| 457 | args.fPhase = 0; |
| 458 | } |
| 459 | |
| 460 | // Change the dashing info from src space into device space |
| 461 | SkScalar* devIntervals = args.fIntervals; |
| 462 | devIntervals[0] = args.fIntervals[0] * args.fParallelScale; |
| 463 | devIntervals[1] = args.fIntervals[1] * args.fParallelScale; |
| 464 | SkScalar devPhase = args.fPhase * args.fParallelScale; |
| 465 | SkScalar strokeWidth = args.fSrcStrokeWidth * args.fPerpendicularScale; |
| 466 | |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 467 | if ((strokeWidth < 1.f && useAA) || 0.f == strokeWidth) { |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 468 | strokeWidth = 1.f; |
| 469 | } |
| 470 | |
| 471 | SkScalar halfDevStroke = strokeWidth * 0.5f; |
| 472 | |
| 473 | if (SkPaint::kSquare_Cap == cap && 0 != args.fSrcStrokeWidth) { |
| 474 | // add cap to on interval and remove from off interval |
| 475 | devIntervals[0] += strokeWidth; |
| 476 | devIntervals[1] -= strokeWidth; |
| 477 | } |
| 478 | SkScalar startOffset = devIntervals[1] * 0.5f + devPhase; |
| 479 | |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 480 | // For EdgeAA, we bloat in X & Y for both square and round caps. |
| 481 | // For MSAA, we don't bloat at all for square caps, and bloat in Y only for round caps. |
| 482 | SkScalar devBloatX = this->aaMode() == kEdgeAA_DashAAMode ? 0.5f : 0.0f; |
| 483 | SkScalar devBloatY = (SkPaint::kRound_Cap == cap && this->aaMode() == kMSAA_DashAAMode) |
| 484 | ? 0.5f : devBloatX; |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 485 | |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 486 | SkScalar bloatX = devBloatX / args.fParallelScale; |
| 487 | SkScalar bloatY = devBloatY / args.fPerpendicularScale; |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 488 | |
| 489 | if (devIntervals[1] <= 0.f && useAA) { |
| 490 | // Case when we end up drawing a solid AA rect |
| 491 | // Reset the start rect to draw this single solid rect |
| 492 | // but it requires to upload a new intervals uniform so we can mimic |
| 493 | // one giant dash |
| 494 | args.fPtsRot[0].fX -= hasStartRect ? startAdj : 0; |
| 495 | args.fPtsRot[1].fX += hasEndRect ? endAdj : 0; |
| 496 | startRect.set(args.fPtsRot, 2); |
| 497 | startRect.outset(strokeAdj, halfSrcStroke); |
| 498 | hasStartRect = true; |
| 499 | hasEndRect = false; |
| 500 | lineDone = true; |
| 501 | |
| 502 | SkPoint devicePts[2]; |
| 503 | args.fViewMatrix.mapPoints(devicePts, args.fPtsRot, 2); |
| 504 | SkScalar lineLength = SkPoint::Distance(devicePts[0], devicePts[1]); |
| 505 | if (hasCap) { |
| 506 | lineLength += 2.f * halfDevStroke; |
| 507 | } |
| 508 | devIntervals[0] = lineLength; |
| 509 | } |
| 510 | |
| 511 | totalRectCount += !lineDone ? 1 : 0; |
| 512 | totalRectCount += hasStartRect ? 1 : 0; |
| 513 | totalRectCount += hasEndRect ? 1 : 0; |
| 514 | |
| 515 | if (SkPaint::kRound_Cap == cap && 0 != args.fSrcStrokeWidth) { |
| 516 | // need to adjust this for round caps to correctly set the dashPos attrib on |
| 517 | // vertices |
| 518 | startOffset -= halfDevStroke; |
| 519 | } |
| 520 | |
| 521 | DashDraw& draw = draws.push_back(); |
| 522 | if (!lineDone) { |
| 523 | SkPoint devicePts[2]; |
| 524 | args.fViewMatrix.mapPoints(devicePts, args.fPtsRot, 2); |
| 525 | draw.fLineLength = SkPoint::Distance(devicePts[0], devicePts[1]); |
| 526 | if (hasCap) { |
| 527 | draw.fLineLength += 2.f * halfDevStroke; |
| 528 | } |
| 529 | |
| 530 | bounds.set(args.fPtsRot[0].fX, args.fPtsRot[0].fY, |
| 531 | args.fPtsRot[1].fX, args.fPtsRot[1].fY); |
| 532 | bounds.outset(bloatX + strokeAdj, bloatY + halfSrcStroke); |
| 533 | } |
| 534 | |
| 535 | if (hasStartRect) { |
| 536 | SkASSERT(useAA); // so that we know bloatX and bloatY have been set |
| 537 | startRect.outset(bloatX, bloatY); |
| 538 | } |
| 539 | |
| 540 | if (hasEndRect) { |
| 541 | SkASSERT(useAA); // so that we know bloatX and bloatY have been set |
| 542 | endRect.outset(bloatX, bloatY); |
| 543 | } |
| 544 | |
| 545 | draw.fStartOffset = startOffset; |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 546 | draw.fDevBloatX = devBloatX; |
| 547 | draw.fDevBloatY = devBloatY; |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 548 | draw.fHalfDevStroke = halfDevStroke; |
| 549 | draw.fStrokeWidth = strokeWidth; |
| 550 | draw.fHasStartRect = hasStartRect; |
| 551 | draw.fLineDone = lineDone; |
| 552 | draw.fHasEndRect = hasEndRect; |
| 553 | } |
| 554 | |
bsalomon | b5238a7 | 2015-05-05 07:49:49 -0700 | [diff] [blame] | 555 | if (!totalRectCount) { |
| 556 | return; |
| 557 | } |
bsalomon | 8415abe | 2015-05-04 11:41:41 -0700 | [diff] [blame] | 558 | |
bsalomon | b5238a7 | 2015-05-05 07:49:49 -0700 | [diff] [blame] | 559 | QuadHelper helper; |
bsalomon | 7539856 | 2015-08-17 12:55:38 -0700 | [diff] [blame] | 560 | void* vertices = helper.init(target, gp->getVertexStride(), totalRectCount); |
bsalomon | b5238a7 | 2015-05-05 07:49:49 -0700 | [diff] [blame] | 561 | if (!vertices) { |
joshualitt | 4b31de8 | 2015-03-05 14:33:41 -0800 | [diff] [blame] | 562 | return; |
| 563 | } |
| 564 | |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 565 | int curVIdx = 0; |
| 566 | int rectIndex = 0; |
| 567 | for (int i = 0; i < instanceCount; i++) { |
bsalomon | b5238a7 | 2015-05-05 07:49:49 -0700 | [diff] [blame] | 568 | Geometry& geom = fGeoData[i]; |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 569 | |
| 570 | if (!draws[i].fLineDone) { |
| 571 | if (fullDash) { |
bsalomon | b5238a7 | 2015-05-05 07:49:49 -0700 | [diff] [blame] | 572 | setup_dashed_rect(rects[rectIndex], vertices, curVIdx, geom.fSrcRotInv, |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 573 | draws[i].fStartOffset, draws[i].fDevBloatX, |
| 574 | draws[i].fDevBloatY, draws[i].fLineLength, |
bsalomon | b5238a7 | 2015-05-05 07:49:49 -0700 | [diff] [blame] | 575 | draws[i].fHalfDevStroke, geom.fIntervals[0], |
| 576 | geom.fIntervals[1], draws[i].fStrokeWidth, |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 577 | capType, gp->getVertexStride()); |
| 578 | } else { |
| 579 | SkPoint* verts = reinterpret_cast<SkPoint*>(vertices); |
| 580 | SkASSERT(gp->getVertexStride() == sizeof(SkPoint)); |
bsalomon | b5238a7 | 2015-05-05 07:49:49 -0700 | [diff] [blame] | 581 | setup_dashed_rect_pos(rects[rectIndex], curVIdx, geom.fSrcRotInv, verts); |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 582 | } |
| 583 | curVIdx += 4; |
| 584 | } |
| 585 | rectIndex++; |
| 586 | |
| 587 | if (draws[i].fHasStartRect) { |
| 588 | if (fullDash) { |
bsalomon | b5238a7 | 2015-05-05 07:49:49 -0700 | [diff] [blame] | 589 | setup_dashed_rect(rects[rectIndex], vertices, curVIdx, geom.fSrcRotInv, |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 590 | draws[i].fStartOffset, draws[i].fDevBloatX, |
bsalomon | b5238a7 | 2015-05-05 07:49:49 -0700 | [diff] [blame] | 591 | draws[i].fDevBloatY, geom.fIntervals[0], |
| 592 | draws[i].fHalfDevStroke, geom.fIntervals[0], |
| 593 | geom.fIntervals[1], draws[i].fStrokeWidth, capType, |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 594 | gp->getVertexStride()); |
| 595 | } else { |
| 596 | SkPoint* verts = reinterpret_cast<SkPoint*>(vertices); |
| 597 | SkASSERT(gp->getVertexStride() == sizeof(SkPoint)); |
bsalomon | b5238a7 | 2015-05-05 07:49:49 -0700 | [diff] [blame] | 598 | setup_dashed_rect_pos(rects[rectIndex], curVIdx, geom.fSrcRotInv, verts); |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 599 | } |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 600 | curVIdx += 4; |
| 601 | } |
| 602 | rectIndex++; |
| 603 | |
| 604 | if (draws[i].fHasEndRect) { |
| 605 | if (fullDash) { |
bsalomon | b5238a7 | 2015-05-05 07:49:49 -0700 | [diff] [blame] | 606 | setup_dashed_rect(rects[rectIndex], vertices, curVIdx, geom.fSrcRotInv, |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 607 | draws[i].fStartOffset, draws[i].fDevBloatX, |
bsalomon | b5238a7 | 2015-05-05 07:49:49 -0700 | [diff] [blame] | 608 | draws[i].fDevBloatY, geom.fIntervals[0], |
| 609 | draws[i].fHalfDevStroke, geom.fIntervals[0], |
| 610 | geom.fIntervals[1], draws[i].fStrokeWidth, capType, |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 611 | gp->getVertexStride()); |
| 612 | } else { |
| 613 | SkPoint* verts = reinterpret_cast<SkPoint*>(vertices); |
| 614 | SkASSERT(gp->getVertexStride() == sizeof(SkPoint)); |
bsalomon | b5238a7 | 2015-05-05 07:49:49 -0700 | [diff] [blame] | 615 | setup_dashed_rect_pos(rects[rectIndex], curVIdx, geom.fSrcRotInv, verts); |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 616 | } |
| 617 | curVIdx += 4; |
| 618 | } |
| 619 | rectIndex++; |
| 620 | } |
bsalomon | b5238a7 | 2015-05-05 07:49:49 -0700 | [diff] [blame] | 621 | SkASSERT(0 == (curVIdx % 4) && (curVIdx / 4) == totalRectCount); |
bsalomon | 7539856 | 2015-08-17 12:55:38 -0700 | [diff] [blame] | 622 | helper.recordDraw(target); |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 623 | } |
| 624 | |
bsalomon | cb02b38 | 2015-08-12 11:14:50 -0700 | [diff] [blame] | 625 | bool onCombineIfPossible(GrBatch* t, const GrCaps& caps) override { |
bsalomon | abd30f5 | 2015-08-13 13:34:48 -0700 | [diff] [blame] | 626 | DashBatch* that = t->cast<DashBatch>(); |
| 627 | if (!GrPipeline::CanCombine(*this->pipeline(), this->bounds(), *that->pipeline(), |
| 628 | that->bounds(), caps)) { |
joshualitt | 8cab9a7 | 2015-07-16 09:13:50 -0700 | [diff] [blame] | 629 | return false; |
| 630 | } |
| 631 | |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 632 | if (this->aaMode() != that->aaMode()) { |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 633 | return false; |
| 634 | } |
| 635 | |
| 636 | if (this->fullDash() != that->fullDash()) { |
| 637 | return false; |
| 638 | } |
| 639 | |
| 640 | if (this->cap() != that->cap()) { |
| 641 | return false; |
| 642 | } |
| 643 | |
| 644 | // TODO vertex color |
| 645 | if (this->color() != that->color()) { |
| 646 | return false; |
| 647 | } |
| 648 | |
| 649 | SkASSERT(this->usesLocalCoords() == that->usesLocalCoords()); |
| 650 | if (this->usesLocalCoords() && !this->viewMatrix().cheapEqualTo(that->viewMatrix())) { |
| 651 | return false; |
| 652 | } |
| 653 | |
| 654 | fGeoData.push_back_n(that->geoData()->count(), that->geoData()->begin()); |
joshualitt | 99c7c07 | 2015-05-01 13:43:30 -0700 | [diff] [blame] | 655 | this->joinBounds(that->bounds()); |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 656 | return true; |
| 657 | } |
| 658 | |
| 659 | GrColor color() const { return fBatch.fColor; } |
| 660 | bool usesLocalCoords() const { return fBatch.fUsesLocalCoords; } |
| 661 | const SkMatrix& viewMatrix() const { return fGeoData[0].fViewMatrix; } |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 662 | DashAAMode aaMode() const { return fBatch.fAAMode; } |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 663 | bool fullDash() const { return fBatch.fFullDash; } |
| 664 | SkPaint::Cap cap() const { return fBatch.fCap; } |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 665 | bool coverageIgnored() const { return fBatch.fCoverageIgnored; } |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 666 | |
| 667 | struct BatchTracker { |
| 668 | GrColor fColor; |
| 669 | bool fUsesLocalCoords; |
| 670 | bool fColorIgnored; |
| 671 | bool fCoverageIgnored; |
| 672 | SkPaint::Cap fCap; |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 673 | DashAAMode fAAMode; |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 674 | bool fFullDash; |
| 675 | }; |
| 676 | |
| 677 | static const int kVertsPerDash = 4; |
| 678 | static const int kIndicesPerDash = 6; |
| 679 | |
| 680 | BatchTracker fBatch; |
| 681 | SkSTArray<1, Geometry, true> fGeoData; |
reed | 1b55a96 | 2015-09-17 20:16:13 -0700 | [diff] [blame] | 682 | |
| 683 | typedef GrVertexBatch INHERITED; |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 684 | }; |
| 685 | |
bsalomon | abd30f5 | 2015-08-13 13:34:48 -0700 | [diff] [blame] | 686 | static GrDrawBatch* create_batch(GrColor color, const SkMatrix& viewMatrix, const SkPoint pts[2], |
| 687 | bool useAA, const GrStrokeInfo& strokeInfo, bool msaaRT) { |
kkinnunen | 261694c | 2015-05-05 08:00:10 -0700 | [diff] [blame] | 688 | const SkScalar* intervals = strokeInfo.getDashIntervals(); |
| 689 | SkScalar phase = strokeInfo.getDashPhase(); |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 690 | |
kkinnunen | d156d36 | 2015-05-18 22:23:54 -0700 | [diff] [blame] | 691 | SkPaint::Cap cap = strokeInfo.getCap(); |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 692 | |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 693 | DashBatch::Geometry geometry; |
kkinnunen | d156d36 | 2015-05-18 22:23:54 -0700 | [diff] [blame] | 694 | geometry.fSrcStrokeWidth = strokeInfo.getWidth(); |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 695 | |
| 696 | // the phase should be normalized to be [0, sum of all intervals) |
kkinnunen | 261694c | 2015-05-05 08:00:10 -0700 | [diff] [blame] | 697 | SkASSERT(phase >= 0 && phase < intervals[0] + intervals[1]); |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 698 | |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 699 | // Rotate the src pts so they are aligned horizontally with pts[0].fX < pts[1].fX |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 700 | if (pts[0].fY != pts[1].fY || pts[0].fX > pts[1].fX) { |
egdaniel | e61c411 | 2014-06-12 10:24:21 -0700 | [diff] [blame] | 701 | SkMatrix rotMatrix; |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 702 | align_to_x_axis(pts, &rotMatrix, geometry.fPtsRot); |
| 703 | if(!rotMatrix.invert(&geometry.fSrcRotInv)) { |
tfarina | 38406c8 | 2014-10-31 07:11:12 -0700 | [diff] [blame] | 704 | SkDebugf("Failed to create invertible rotation matrix!\n"); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 705 | return nullptr; |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 706 | } |
| 707 | } else { |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 708 | geometry.fSrcRotInv.reset(); |
| 709 | memcpy(geometry.fPtsRot, pts, 2 * sizeof(SkPoint)); |
| 710 | } |
| 711 | |
| 712 | // Scale corrections of intervals and stroke from view matrix |
| 713 | calc_dash_scaling(&geometry.fParallelScale, &geometry.fPerpendicularScale, viewMatrix, |
| 714 | geometry.fPtsRot); |
| 715 | |
kkinnunen | 261694c | 2015-05-05 08:00:10 -0700 | [diff] [blame] | 716 | SkScalar offInterval = intervals[1] * geometry.fParallelScale; |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 717 | SkScalar strokeWidth = geometry.fSrcStrokeWidth * geometry.fPerpendicularScale; |
| 718 | |
| 719 | if (SkPaint::kSquare_Cap == cap && 0 != geometry.fSrcStrokeWidth) { |
| 720 | // add cap to on interveal and remove from off interval |
| 721 | offInterval -= strokeWidth; |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 722 | } |
| 723 | |
joshualitt | fa2008f | 2015-04-29 11:32:05 -0700 | [diff] [blame] | 724 | DashAAMode aaMode = msaaRT ? kMSAA_DashAAMode : |
| 725 | useAA ? kEdgeAA_DashAAMode : kBW_DashAAMode; |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 726 | |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 727 | // TODO we can do a real rect call if not using fulldash(ie no off interval, not using AA) |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 728 | bool fullDash = offInterval > 0.f || aaMode != kBW_DashAAMode; |
skia.committer@gmail.com | 3b9e8be | 2014-05-20 03:05:34 +0000 | [diff] [blame] | 729 | |
joshualitt | 4f569be | 2015-02-27 11:41:49 -0800 | [diff] [blame] | 730 | geometry.fColor = color; |
| 731 | geometry.fViewMatrix = viewMatrix; |
kkinnunen | 261694c | 2015-05-05 08:00:10 -0700 | [diff] [blame] | 732 | geometry.fPhase = phase; |
| 733 | geometry.fIntervals[0] = intervals[0]; |
| 734 | geometry.fIntervals[1] = intervals[1]; |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 735 | |
joshualitt | fa2008f | 2015-04-29 11:32:05 -0700 | [diff] [blame] | 736 | return DashBatch::Create(geometry, cap, aaMode, fullDash); |
| 737 | } |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 738 | |
bsalomon | ed0bcad | 2015-05-04 10:36:42 -0700 | [diff] [blame] | 739 | bool GrDashingEffect::DrawDashLine(GrDrawTarget* target, |
joshualitt | 1c73548 | 2015-07-13 08:08:25 -0700 | [diff] [blame] | 740 | const GrPipelineBuilder& pipelineBuilder, GrColor color, |
joshualitt | fa2008f | 2015-04-29 11:32:05 -0700 | [diff] [blame] | 741 | const SkMatrix& viewMatrix, const SkPoint pts[2], |
| 742 | bool useAA, const GrStrokeInfo& strokeInfo) { |
bsalomon | abd30f5 | 2015-08-13 13:34:48 -0700 | [diff] [blame] | 743 | SkAutoTUnref<GrDrawBatch> batch( |
joshualitt | 1c73548 | 2015-07-13 08:08:25 -0700 | [diff] [blame] | 744 | create_batch(color, viewMatrix, pts, useAA, strokeInfo, |
| 745 | pipelineBuilder.getRenderTarget()->isUnifiedMultisampled())); |
joshualitt | fa2008f | 2015-04-29 11:32:05 -0700 | [diff] [blame] | 746 | if (!batch) { |
| 747 | return false; |
| 748 | } |
| 749 | |
| 750 | target->drawBatch(pipelineBuilder, batch); |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 751 | return true; |
| 752 | } |
| 753 | |
| 754 | ////////////////////////////////////////////////////////////////////////////// |
| 755 | |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 756 | class GLDashingCircleEffect; |
joshualitt | 9b98932 | 2014-12-15 14:16:27 -0800 | [diff] [blame] | 757 | |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 758 | /* |
| 759 | * This effect will draw a dotted line (defined as a dashed lined with round caps and no on |
| 760 | * interval). The radius of the dots is given by the strokeWidth and the spacing by the DashInfo. |
| 761 | * Both of the previous two parameters are in device space. This effect also requires the setting of |
| 762 | * a vec2 vertex attribute for the the four corners of the bounding rect. This attribute is the |
| 763 | * "dash position" of each vertex. In other words it is the vertex coords (in device space) if we |
| 764 | * transform the line to be horizontal, with the start of line at the origin then shifted to the |
| 765 | * right by half the off interval. The line then goes in the positive x direction. |
| 766 | */ |
joshualitt | 249af15 | 2014-09-15 11:41:13 -0700 | [diff] [blame] | 767 | class DashingCircleEffect : public GrGeometryProcessor { |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 768 | public: |
| 769 | typedef SkPathEffect::DashInfo DashInfo; |
| 770 | |
joshualitt | 2e3b3e3 | 2014-12-09 13:31:14 -0800 | [diff] [blame] | 771 | static GrGeometryProcessor* Create(GrColor, |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 772 | DashAAMode aaMode, |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 773 | const SkMatrix& localMatrix, |
| 774 | bool usesLocalCoords); |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 775 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 776 | const char* name() const override { return "DashingCircleEffect"; } |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 777 | |
joshualitt | 71c9260 | 2015-01-14 08:12:47 -0800 | [diff] [blame] | 778 | const Attribute* inPosition() const { return fInPosition; } |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 779 | |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 780 | const Attribute* inDashParams() const { return fInDashParams; } |
| 781 | |
| 782 | const Attribute* inCircleParams() const { return fInCircleParams; } |
joshualitt | 249af15 | 2014-09-15 11:41:13 -0700 | [diff] [blame] | 783 | |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 784 | DashAAMode aaMode() const { return fAAMode; } |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 785 | |
joshualitt | 88c23fc | 2015-05-13 14:18:07 -0700 | [diff] [blame] | 786 | GrColor color() const { return fColor; } |
| 787 | |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 788 | bool colorIgnored() const { return GrColor_ILLEGAL == fColor; } |
| 789 | |
joshualitt | e3ababe | 2015-05-15 07:56:07 -0700 | [diff] [blame] | 790 | const SkMatrix& localMatrix() const { return fLocalMatrix; } |
| 791 | |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 792 | bool usesLocalCoords() const { return fUsesLocalCoords; } |
| 793 | |
joshualitt | 465283c | 2015-09-11 08:19:35 -0700 | [diff] [blame] | 794 | void getGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder* b) const override; |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 795 | |
joshualitt | 465283c | 2015-09-11 08:19:35 -0700 | [diff] [blame] | 796 | GrGLPrimitiveProcessor* createGLInstance(const GrGLSLCaps&) const override; |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 797 | |
| 798 | private: |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 799 | DashingCircleEffect(GrColor, DashAAMode aaMode, const SkMatrix& localMatrix, |
| 800 | bool usesLocalCoords); |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 801 | |
joshualitt | 88c23fc | 2015-05-13 14:18:07 -0700 | [diff] [blame] | 802 | GrColor fColor; |
joshualitt | e3ababe | 2015-05-15 07:56:07 -0700 | [diff] [blame] | 803 | SkMatrix fLocalMatrix; |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 804 | bool fUsesLocalCoords; |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 805 | DashAAMode fAAMode; |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 806 | const Attribute* fInPosition; |
| 807 | const Attribute* fInDashParams; |
| 808 | const Attribute* fInCircleParams; |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 809 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 810 | GR_DECLARE_GEOMETRY_PROCESSOR_TEST; |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 811 | |
joshualitt | 249af15 | 2014-09-15 11:41:13 -0700 | [diff] [blame] | 812 | typedef GrGeometryProcessor INHERITED; |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 813 | }; |
| 814 | |
| 815 | ////////////////////////////////////////////////////////////////////////////// |
| 816 | |
joshualitt | 249af15 | 2014-09-15 11:41:13 -0700 | [diff] [blame] | 817 | class GLDashingCircleEffect : public GrGLGeometryProcessor { |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 818 | public: |
joshualitt | 465283c | 2015-09-11 08:19:35 -0700 | [diff] [blame] | 819 | GLDashingCircleEffect(); |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 820 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 821 | void onEmitCode(EmitArgs&, GrGPArgs*) override; |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 822 | |
joshualitt | 87f48d9 | 2014-12-04 10:41:40 -0800 | [diff] [blame] | 823 | static inline void GenKey(const GrGeometryProcessor&, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 824 | const GrGLSLCaps&, |
joshualitt | 87f48d9 | 2014-12-04 10:41:40 -0800 | [diff] [blame] | 825 | GrProcessorKeyBuilder*); |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 826 | |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 827 | void setData(const GrGLSLProgramDataManager&, const GrPrimitiveProcessor&) override; |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 828 | |
joshualitt | e3ababe | 2015-05-15 07:56:07 -0700 | [diff] [blame] | 829 | void setTransformData(const GrPrimitiveProcessor& primProc, |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 830 | const GrGLSLProgramDataManager& pdman, |
joshualitt | e3ababe | 2015-05-15 07:56:07 -0700 | [diff] [blame] | 831 | int index, |
| 832 | const SkTArray<const GrCoordTransform*, true>& transforms) override { |
| 833 | this->setTransformDataHelper<DashingCircleEffect>(primProc, pdman, index, transforms); |
| 834 | } |
| 835 | |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 836 | private: |
joshualitt | 9b98932 | 2014-12-15 14:16:27 -0800 | [diff] [blame] | 837 | UniformHandle fParamUniform; |
| 838 | UniformHandle fColorUniform; |
| 839 | GrColor fColor; |
| 840 | SkScalar fPrevRadius; |
| 841 | SkScalar fPrevCenterX; |
| 842 | SkScalar fPrevIntervalLength; |
joshualitt | 249af15 | 2014-09-15 11:41:13 -0700 | [diff] [blame] | 843 | typedef GrGLGeometryProcessor INHERITED; |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 844 | }; |
| 845 | |
joshualitt | 465283c | 2015-09-11 08:19:35 -0700 | [diff] [blame] | 846 | GLDashingCircleEffect::GLDashingCircleEffect() { |
joshualitt | 9b98932 | 2014-12-15 14:16:27 -0800 | [diff] [blame] | 847 | fColor = GrColor_ILLEGAL; |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 848 | fPrevRadius = SK_ScalarMin; |
| 849 | fPrevCenterX = SK_ScalarMin; |
| 850 | fPrevIntervalLength = SK_ScalarMax; |
| 851 | } |
| 852 | |
robertphillips | 46d36f0 | 2015-01-18 08:14:14 -0800 | [diff] [blame] | 853 | void GLDashingCircleEffect::onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) { |
joshualitt | c369e7c | 2014-10-22 10:56:26 -0700 | [diff] [blame] | 854 | const DashingCircleEffect& dce = args.fGP.cast<DashingCircleEffect>(); |
egdaniel | 8dcdedc | 2015-11-11 06:27:20 -0800 | [diff] [blame] | 855 | GrGLSLGPBuilder* pb = args.fPB; |
egdaniel | 2d721d3 | 2015-11-11 13:06:05 -0800 | [diff] [blame^] | 856 | GrGLSLVertexBuilder* vsBuilder = args.fPB->getVertexShaderBuilder(); |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 857 | |
joshualitt | abb52a1 | 2015-01-13 15:02:10 -0800 | [diff] [blame] | 858 | // emit attributes |
| 859 | vsBuilder->emitAttributes(dce); |
| 860 | |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 861 | // XY are dashPos, Z is dashInterval |
egdaniel | 8dcdedc | 2015-11-11 06:27:20 -0800 | [diff] [blame] | 862 | GrGLSLVertToFrag dashParams(kVec3f_GrSLType); |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 863 | args.fPB->addVarying("DashParam", &dashParams); |
| 864 | vsBuilder->codeAppendf("%s = %s;", dashParams.vsOut(), dce.inDashParams()->fName); |
| 865 | |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 866 | // x refers to circle radius - 0.5, y refers to cicle's center x coord |
egdaniel | 8dcdedc | 2015-11-11 06:27:20 -0800 | [diff] [blame] | 867 | GrGLSLVertToFrag circleParams(kVec2f_GrSLType); |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 868 | args.fPB->addVarying("CircleParams", &circleParams); |
| 869 | vsBuilder->codeAppendf("%s = %s;", circleParams.vsOut(), dce.inCircleParams()->fName); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 870 | |
joshualitt | 9b98932 | 2014-12-15 14:16:27 -0800 | [diff] [blame] | 871 | // Setup pass through color |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 872 | if (!dce.colorIgnored()) { |
| 873 | this->setupUniformColor(pb, args.fOutputColor, &fColorUniform); |
| 874 | } |
joshualitt | 9b98932 | 2014-12-15 14:16:27 -0800 | [diff] [blame] | 875 | |
joshualitt | abb52a1 | 2015-01-13 15:02:10 -0800 | [diff] [blame] | 876 | // Setup position |
joshualitt | e578a95 | 2015-05-14 10:09:13 -0700 | [diff] [blame] | 877 | this->setupPosition(pb, gpArgs, dce.inPosition()->fName); |
joshualitt | 4973d9d | 2014-11-08 09:24:25 -0800 | [diff] [blame] | 878 | |
joshualitt | abb52a1 | 2015-01-13 15:02:10 -0800 | [diff] [blame] | 879 | // emit transforms |
robertphillips | 46d36f0 | 2015-01-18 08:14:14 -0800 | [diff] [blame] | 880 | this->emitTransforms(args.fPB, gpArgs->fPositionVar, dce.inPosition()->fName, dce.localMatrix(), |
joshualitt | abb52a1 | 2015-01-13 15:02:10 -0800 | [diff] [blame] | 881 | args.fTransformsIn, args.fTransformsOut); |
| 882 | |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 883 | // transforms all points so that we can compare them to our test circle |
egdaniel | 2d721d3 | 2015-11-11 13:06:05 -0800 | [diff] [blame^] | 884 | GrGLSLFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder(); |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 885 | fsBuilder->codeAppendf("float xShifted = %s.x - floor(%s.x / %s.z) * %s.z;", |
| 886 | dashParams.fsIn(), dashParams.fsIn(), dashParams.fsIn(), |
| 887 | dashParams.fsIn()); |
| 888 | fsBuilder->codeAppendf("vec2 fragPosShifted = vec2(xShifted, %s.y);", dashParams.fsIn()); |
| 889 | fsBuilder->codeAppendf("vec2 center = vec2(%s.y, 0.0);", circleParams.fsIn()); |
| 890 | fsBuilder->codeAppend("float dist = length(center - fragPosShifted);"); |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 891 | if (dce.aaMode() != kBW_DashAAMode) { |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 892 | fsBuilder->codeAppendf("float diff = dist - %s.x;", circleParams.fsIn()); |
| 893 | fsBuilder->codeAppend("diff = 1.0 - diff;"); |
| 894 | fsBuilder->codeAppend("float alpha = clamp(diff, 0.0, 1.0);"); |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 895 | } else { |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 896 | fsBuilder->codeAppendf("float alpha = 1.0;"); |
| 897 | fsBuilder->codeAppendf("alpha *= dist < %s.x + 0.5 ? 1.0 : 0.0;", circleParams.fsIn()); |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 898 | } |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 899 | fsBuilder->codeAppendf("%s = vec4(alpha);", args.fOutputCoverage); |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 900 | } |
| 901 | |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 902 | void GLDashingCircleEffect::setData(const GrGLSLProgramDataManager& pdman, |
joshualitt | 465283c | 2015-09-11 08:19:35 -0700 | [diff] [blame] | 903 | const GrPrimitiveProcessor& processor) { |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 904 | const DashingCircleEffect& dce = processor.cast<DashingCircleEffect>(); |
| 905 | if (dce.color() != fColor) { |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 906 | float c[4]; |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 907 | GrColorToRGBAFloat(dce.color(), c); |
joshualitt | 9b98932 | 2014-12-15 14:16:27 -0800 | [diff] [blame] | 908 | pdman.set4fv(fColorUniform, 1, c); |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 909 | fColor = dce.color(); |
joshualitt | 9b98932 | 2014-12-15 14:16:27 -0800 | [diff] [blame] | 910 | } |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 911 | } |
| 912 | |
robertphillips | 46d36f0 | 2015-01-18 08:14:14 -0800 | [diff] [blame] | 913 | void GLDashingCircleEffect::GenKey(const GrGeometryProcessor& gp, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 914 | const GrGLSLCaps&, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 915 | GrProcessorKeyBuilder* b) { |
robertphillips | 46d36f0 | 2015-01-18 08:14:14 -0800 | [diff] [blame] | 916 | const DashingCircleEffect& dce = gp.cast<DashingCircleEffect>(); |
| 917 | uint32_t key = 0; |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 918 | key |= dce.usesLocalCoords() && dce.localMatrix().hasPerspective() ? 0x1 : 0x0; |
| 919 | key |= dce.colorIgnored() ? 0x2 : 0x0; |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 920 | key |= dce.aaMode() << 8; |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 921 | b->add32(key); |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 922 | } |
| 923 | |
| 924 | ////////////////////////////////////////////////////////////////////////////// |
| 925 | |
joshualitt | 2e3b3e3 | 2014-12-09 13:31:14 -0800 | [diff] [blame] | 926 | GrGeometryProcessor* DashingCircleEffect::Create(GrColor color, |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 927 | DashAAMode aaMode, |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 928 | const SkMatrix& localMatrix, |
| 929 | bool usesLocalCoords) { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 930 | return new DashingCircleEffect(color, aaMode, localMatrix, usesLocalCoords); |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 931 | } |
| 932 | |
joshualitt | 465283c | 2015-09-11 08:19:35 -0700 | [diff] [blame] | 933 | void DashingCircleEffect::getGLProcessorKey(const GrGLSLCaps& caps,GrProcessorKeyBuilder* b) const { |
| 934 | GLDashingCircleEffect::GenKey(*this, caps, b); |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 935 | } |
| 936 | |
joshualitt | 465283c | 2015-09-11 08:19:35 -0700 | [diff] [blame] | 937 | GrGLPrimitiveProcessor* DashingCircleEffect::createGLInstance(const GrGLSLCaps&) const { |
| 938 | return new GLDashingCircleEffect(); |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 939 | } |
| 940 | |
joshualitt | 2e3b3e3 | 2014-12-09 13:31:14 -0800 | [diff] [blame] | 941 | DashingCircleEffect::DashingCircleEffect(GrColor color, |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 942 | DashAAMode aaMode, |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 943 | const SkMatrix& localMatrix, |
| 944 | bool usesLocalCoords) |
joshualitt | e3ababe | 2015-05-15 07:56:07 -0700 | [diff] [blame] | 945 | : fColor(color) |
| 946 | , fLocalMatrix(localMatrix) |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 947 | , fUsesLocalCoords(usesLocalCoords) |
joshualitt | 88c23fc | 2015-05-13 14:18:07 -0700 | [diff] [blame] | 948 | , fAAMode(aaMode) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 949 | this->initClassID<DashingCircleEffect>(); |
joshualitt | 71c9260 | 2015-01-14 08:12:47 -0800 | [diff] [blame] | 950 | fInPosition = &this->addVertexAttrib(Attribute("inPosition", kVec2f_GrVertexAttribType)); |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 951 | fInDashParams = &this->addVertexAttrib(Attribute("inDashParams", kVec3f_GrVertexAttribType)); |
| 952 | fInCircleParams = &this->addVertexAttrib(Attribute("inCircleParams", |
| 953 | kVec2f_GrVertexAttribType)); |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 954 | } |
| 955 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 956 | GR_DEFINE_GEOMETRY_PROCESSOR_TEST(DashingCircleEffect); |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 957 | |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 958 | const GrGeometryProcessor* DashingCircleEffect::TestCreate(GrProcessorTestData* d) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 959 | DashAAMode aaMode = static_cast<DashAAMode>(d->fRandom->nextULessThan(kDashAAModeCount)); |
| 960 | return DashingCircleEffect::Create(GrRandomColor(d->fRandom), |
| 961 | aaMode, GrTest::TestMatrix(d->fRandom), |
| 962 | d->fRandom->nextBool()); |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 963 | } |
| 964 | |
| 965 | ////////////////////////////////////////////////////////////////////////////// |
| 966 | |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 967 | class GLDashingLineEffect; |
| 968 | |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 969 | /* |
| 970 | * This effect will draw a dashed line. The width of the dash is given by the strokeWidth and the |
| 971 | * length and spacing by the DashInfo. Both of the previous two parameters are in device space. |
| 972 | * This effect also requires the setting of a vec2 vertex attribute for the the four corners of the |
| 973 | * bounding rect. This attribute is the "dash position" of each vertex. In other words it is the |
| 974 | * vertex coords (in device space) if we transform the line to be horizontal, with the start of |
| 975 | * line at the origin then shifted to the right by half the off interval. The line then goes in the |
| 976 | * positive x direction. |
| 977 | */ |
joshualitt | 249af15 | 2014-09-15 11:41:13 -0700 | [diff] [blame] | 978 | class DashingLineEffect : public GrGeometryProcessor { |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 979 | public: |
| 980 | typedef SkPathEffect::DashInfo DashInfo; |
| 981 | |
joshualitt | 2e3b3e3 | 2014-12-09 13:31:14 -0800 | [diff] [blame] | 982 | static GrGeometryProcessor* Create(GrColor, |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 983 | DashAAMode aaMode, |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 984 | const SkMatrix& localMatrix, |
| 985 | bool usesLocalCoords); |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 986 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 987 | const char* name() const override { return "DashingEffect"; } |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 988 | |
joshualitt | 71c9260 | 2015-01-14 08:12:47 -0800 | [diff] [blame] | 989 | const Attribute* inPosition() const { return fInPosition; } |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 990 | |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 991 | const Attribute* inDashParams() const { return fInDashParams; } |
| 992 | |
| 993 | const Attribute* inRectParams() const { return fInRectParams; } |
joshualitt | 249af15 | 2014-09-15 11:41:13 -0700 | [diff] [blame] | 994 | |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 995 | DashAAMode aaMode() const { return fAAMode; } |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 996 | |
joshualitt | 88c23fc | 2015-05-13 14:18:07 -0700 | [diff] [blame] | 997 | GrColor color() const { return fColor; } |
| 998 | |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 999 | bool colorIgnored() const { return GrColor_ILLEGAL == fColor; } |
| 1000 | |
joshualitt | e3ababe | 2015-05-15 07:56:07 -0700 | [diff] [blame] | 1001 | const SkMatrix& localMatrix() const { return fLocalMatrix; } |
| 1002 | |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 1003 | bool usesLocalCoords() const { return fUsesLocalCoords; } |
| 1004 | |
joshualitt | 465283c | 2015-09-11 08:19:35 -0700 | [diff] [blame] | 1005 | void getGLProcessorKey(const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) const override; |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1006 | |
joshualitt | 465283c | 2015-09-11 08:19:35 -0700 | [diff] [blame] | 1007 | GrGLPrimitiveProcessor* createGLInstance(const GrGLSLCaps&) const override; |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1008 | |
| 1009 | private: |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 1010 | DashingLineEffect(GrColor, DashAAMode aaMode, const SkMatrix& localMatrix, |
| 1011 | bool usesLocalCoords); |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1012 | |
joshualitt | 88c23fc | 2015-05-13 14:18:07 -0700 | [diff] [blame] | 1013 | GrColor fColor; |
joshualitt | e3ababe | 2015-05-15 07:56:07 -0700 | [diff] [blame] | 1014 | SkMatrix fLocalMatrix; |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 1015 | bool fUsesLocalCoords; |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 1016 | DashAAMode fAAMode; |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 1017 | const Attribute* fInPosition; |
| 1018 | const Attribute* fInDashParams; |
| 1019 | const Attribute* fInRectParams; |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1020 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1021 | GR_DECLARE_GEOMETRY_PROCESSOR_TEST; |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1022 | |
joshualitt | 249af15 | 2014-09-15 11:41:13 -0700 | [diff] [blame] | 1023 | typedef GrGeometryProcessor INHERITED; |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1024 | }; |
| 1025 | |
| 1026 | ////////////////////////////////////////////////////////////////////////////// |
| 1027 | |
joshualitt | 249af15 | 2014-09-15 11:41:13 -0700 | [diff] [blame] | 1028 | class GLDashingLineEffect : public GrGLGeometryProcessor { |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1029 | public: |
joshualitt | 465283c | 2015-09-11 08:19:35 -0700 | [diff] [blame] | 1030 | GLDashingLineEffect(); |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1031 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1032 | void onEmitCode(EmitArgs&, GrGPArgs*) override; |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1033 | |
joshualitt | 87f48d9 | 2014-12-04 10:41:40 -0800 | [diff] [blame] | 1034 | static inline void GenKey(const GrGeometryProcessor&, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1035 | const GrGLSLCaps&, |
joshualitt | 87f48d9 | 2014-12-04 10:41:40 -0800 | [diff] [blame] | 1036 | GrProcessorKeyBuilder*); |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1037 | |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 1038 | void setData(const GrGLSLProgramDataManager&, const GrPrimitiveProcessor&) override; |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1039 | |
joshualitt | e3ababe | 2015-05-15 07:56:07 -0700 | [diff] [blame] | 1040 | void setTransformData(const GrPrimitiveProcessor& primProc, |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 1041 | const GrGLSLProgramDataManager& pdman, |
joshualitt | e3ababe | 2015-05-15 07:56:07 -0700 | [diff] [blame] | 1042 | int index, |
| 1043 | const SkTArray<const GrCoordTransform*, true>& transforms) override { |
| 1044 | this->setTransformDataHelper<DashingLineEffect>(primProc, pdman, index, transforms); |
| 1045 | } |
| 1046 | |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1047 | private: |
joshualitt | 9b98932 | 2014-12-15 14:16:27 -0800 | [diff] [blame] | 1048 | GrColor fColor; |
joshualitt | 9b98932 | 2014-12-15 14:16:27 -0800 | [diff] [blame] | 1049 | UniformHandle fColorUniform; |
joshualitt | 249af15 | 2014-09-15 11:41:13 -0700 | [diff] [blame] | 1050 | typedef GrGLGeometryProcessor INHERITED; |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1051 | }; |
| 1052 | |
joshualitt | 465283c | 2015-09-11 08:19:35 -0700 | [diff] [blame] | 1053 | GLDashingLineEffect::GLDashingLineEffect() { |
joshualitt | 9b98932 | 2014-12-15 14:16:27 -0800 | [diff] [blame] | 1054 | fColor = GrColor_ILLEGAL; |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1055 | } |
| 1056 | |
robertphillips | 46d36f0 | 2015-01-18 08:14:14 -0800 | [diff] [blame] | 1057 | void GLDashingLineEffect::onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) { |
joshualitt | c369e7c | 2014-10-22 10:56:26 -0700 | [diff] [blame] | 1058 | const DashingLineEffect& de = args.fGP.cast<DashingLineEffect>(); |
egdaniel | 8dcdedc | 2015-11-11 06:27:20 -0800 | [diff] [blame] | 1059 | GrGLSLGPBuilder* pb = args.fPB; |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 1060 | |
egdaniel | 2d721d3 | 2015-11-11 13:06:05 -0800 | [diff] [blame^] | 1061 | GrGLSLVertexBuilder* vsBuilder = args.fPB->getVertexShaderBuilder(); |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 1062 | |
joshualitt | abb52a1 | 2015-01-13 15:02:10 -0800 | [diff] [blame] | 1063 | // emit attributes |
| 1064 | vsBuilder->emitAttributes(de); |
| 1065 | |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 1066 | // XY refers to dashPos, Z is the dash interval length |
egdaniel | 8dcdedc | 2015-11-11 06:27:20 -0800 | [diff] [blame] | 1067 | GrGLSLVertToFrag inDashParams(kVec3f_GrSLType); |
senorblanco | 1422ec8 | 2015-06-11 11:51:29 -0700 | [diff] [blame] | 1068 | args.fPB->addVarying("DashParams", &inDashParams, GrSLPrecision::kHigh_GrSLPrecision); |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 1069 | vsBuilder->codeAppendf("%s = %s;", inDashParams.vsOut(), de.inDashParams()->fName); |
| 1070 | |
| 1071 | // The rect uniform's xyzw refer to (left + 0.5, top + 0.5, right - 0.5, bottom - 0.5), |
| 1072 | // respectively. |
egdaniel | 8dcdedc | 2015-11-11 06:27:20 -0800 | [diff] [blame] | 1073 | GrGLSLVertToFrag inRectParams(kVec4f_GrSLType); |
senorblanco | 1422ec8 | 2015-06-11 11:51:29 -0700 | [diff] [blame] | 1074 | args.fPB->addVarying("RectParams", &inRectParams, GrSLPrecision::kHigh_GrSLPrecision); |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 1075 | vsBuilder->codeAppendf("%s = %s;", inRectParams.vsOut(), de.inRectParams()->fName); |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 1076 | |
joshualitt | 9b98932 | 2014-12-15 14:16:27 -0800 | [diff] [blame] | 1077 | // Setup pass through color |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 1078 | if (!de.colorIgnored()) { |
| 1079 | this->setupUniformColor(pb, args.fOutputColor, &fColorUniform); |
| 1080 | } |
| 1081 | |
joshualitt | 9b98932 | 2014-12-15 14:16:27 -0800 | [diff] [blame] | 1082 | |
joshualitt | abb52a1 | 2015-01-13 15:02:10 -0800 | [diff] [blame] | 1083 | // Setup position |
joshualitt | e578a95 | 2015-05-14 10:09:13 -0700 | [diff] [blame] | 1084 | this->setupPosition(pb, gpArgs, de.inPosition()->fName); |
joshualitt | 4973d9d | 2014-11-08 09:24:25 -0800 | [diff] [blame] | 1085 | |
joshualitt | abb52a1 | 2015-01-13 15:02:10 -0800 | [diff] [blame] | 1086 | // emit transforms |
robertphillips | 46d36f0 | 2015-01-18 08:14:14 -0800 | [diff] [blame] | 1087 | this->emitTransforms(args.fPB, gpArgs->fPositionVar, de.inPosition()->fName, de.localMatrix(), |
joshualitt | abb52a1 | 2015-01-13 15:02:10 -0800 | [diff] [blame] | 1088 | args.fTransformsIn, args.fTransformsOut); |
| 1089 | |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1090 | // transforms all points so that we can compare them to our test rect |
egdaniel | 2d721d3 | 2015-11-11 13:06:05 -0800 | [diff] [blame^] | 1091 | GrGLSLFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder(); |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 1092 | fsBuilder->codeAppendf("float xShifted = %s.x - floor(%s.x / %s.z) * %s.z;", |
| 1093 | inDashParams.fsIn(), inDashParams.fsIn(), inDashParams.fsIn(), |
| 1094 | inDashParams.fsIn()); |
| 1095 | fsBuilder->codeAppendf("vec2 fragPosShifted = vec2(xShifted, %s.y);", inDashParams.fsIn()); |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 1096 | if (de.aaMode() == kEdgeAA_DashAAMode) { |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1097 | // The amount of coverage removed in x and y by the edges is computed as a pair of negative |
| 1098 | // numbers, xSub and ySub. |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 1099 | fsBuilder->codeAppend("float xSub, ySub;"); |
| 1100 | fsBuilder->codeAppendf("xSub = min(fragPosShifted.x - %s.x, 0.0);", inRectParams.fsIn()); |
| 1101 | fsBuilder->codeAppendf("xSub += min(%s.z - fragPosShifted.x, 0.0);", inRectParams.fsIn()); |
| 1102 | fsBuilder->codeAppendf("ySub = min(fragPosShifted.y - %s.y, 0.0);", inRectParams.fsIn()); |
| 1103 | fsBuilder->codeAppendf("ySub += min(%s.w - fragPosShifted.y, 0.0);", inRectParams.fsIn()); |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1104 | // Now compute coverage in x and y and multiply them to get the fraction of the pixel |
| 1105 | // covered. |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 1106 | fsBuilder->codeAppendf("float alpha = (1.0 + max(xSub, -1.0)) * (1.0 + max(ySub, -1.0));"); |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 1107 | } else if (de.aaMode() == kMSAA_DashAAMode) { |
| 1108 | // For MSAA, we don't modulate the alpha by the Y distance, since MSAA coverage will handle |
| 1109 | // AA on the the top and bottom edges. The shader is only responsible for intra-dash alpha. |
| 1110 | fsBuilder->codeAppend("float xSub;"); |
| 1111 | fsBuilder->codeAppendf("xSub = min(fragPosShifted.x - %s.x, 0.0);", inRectParams.fsIn()); |
| 1112 | fsBuilder->codeAppendf("xSub += min(%s.z - fragPosShifted.x, 0.0);", inRectParams.fsIn()); |
| 1113 | // Now compute coverage in x to get the fraction of the pixel covered. |
| 1114 | fsBuilder->codeAppendf("float alpha = (1.0 + max(xSub, -1.0));"); |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1115 | } else { |
| 1116 | // Assuming the bounding geometry is tight so no need to check y values |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 1117 | fsBuilder->codeAppendf("float alpha = 1.0;"); |
| 1118 | fsBuilder->codeAppendf("alpha *= (fragPosShifted.x - %s.x) > -0.5 ? 1.0 : 0.0;", |
| 1119 | inRectParams.fsIn()); |
| 1120 | fsBuilder->codeAppendf("alpha *= (%s.z - fragPosShifted.x) >= -0.5 ? 1.0 : 0.0;", |
| 1121 | inRectParams.fsIn()); |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1122 | } |
joshualitt | 2dd1ae0 | 2014-12-03 06:24:10 -0800 | [diff] [blame] | 1123 | fsBuilder->codeAppendf("%s = vec4(alpha);", args.fOutputCoverage); |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1124 | } |
| 1125 | |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 1126 | void GLDashingLineEffect::setData(const GrGLSLProgramDataManager& pdman, |
joshualitt | 465283c | 2015-09-11 08:19:35 -0700 | [diff] [blame] | 1127 | const GrPrimitiveProcessor& processor) { |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 1128 | const DashingLineEffect& de = processor.cast<DashingLineEffect>(); |
| 1129 | if (de.color() != fColor) { |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 1130 | float c[4]; |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 1131 | GrColorToRGBAFloat(de.color(), c); |
joshualitt | 9b98932 | 2014-12-15 14:16:27 -0800 | [diff] [blame] | 1132 | pdman.set4fv(fColorUniform, 1, c); |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 1133 | fColor = de.color(); |
joshualitt | 9b98932 | 2014-12-15 14:16:27 -0800 | [diff] [blame] | 1134 | } |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1135 | } |
| 1136 | |
robertphillips | 46d36f0 | 2015-01-18 08:14:14 -0800 | [diff] [blame] | 1137 | void GLDashingLineEffect::GenKey(const GrGeometryProcessor& gp, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1138 | const GrGLSLCaps&, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1139 | GrProcessorKeyBuilder* b) { |
robertphillips | 46d36f0 | 2015-01-18 08:14:14 -0800 | [diff] [blame] | 1140 | const DashingLineEffect& de = gp.cast<DashingLineEffect>(); |
| 1141 | uint32_t key = 0; |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 1142 | key |= de.usesLocalCoords() && de.localMatrix().hasPerspective() ? 0x1 : 0x0; |
| 1143 | key |= de.colorIgnored() ? 0x2 : 0x0; |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 1144 | key |= de.aaMode() << 8; |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 1145 | b->add32(key); |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1146 | } |
| 1147 | |
| 1148 | ////////////////////////////////////////////////////////////////////////////// |
skia.committer@gmail.com | 3b9e8be | 2014-05-20 03:05:34 +0000 | [diff] [blame] | 1149 | |
joshualitt | 2e3b3e3 | 2014-12-09 13:31:14 -0800 | [diff] [blame] | 1150 | GrGeometryProcessor* DashingLineEffect::Create(GrColor color, |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 1151 | DashAAMode aaMode, |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 1152 | const SkMatrix& localMatrix, |
| 1153 | bool usesLocalCoords) { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1154 | return new DashingLineEffect(color, aaMode, localMatrix, usesLocalCoords); |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1155 | } |
| 1156 | |
joshualitt | 465283c | 2015-09-11 08:19:35 -0700 | [diff] [blame] | 1157 | void DashingLineEffect::getGLProcessorKey(const GrGLSLCaps& caps, |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1158 | GrProcessorKeyBuilder* b) const { |
joshualitt | 465283c | 2015-09-11 08:19:35 -0700 | [diff] [blame] | 1159 | GLDashingLineEffect::GenKey(*this, caps, b); |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1160 | } |
| 1161 | |
joshualitt | 465283c | 2015-09-11 08:19:35 -0700 | [diff] [blame] | 1162 | GrGLPrimitiveProcessor* DashingLineEffect::createGLInstance(const GrGLSLCaps&) const { |
| 1163 | return new GLDashingLineEffect(); |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1164 | } |
| 1165 | |
joshualitt | 2e3b3e3 | 2014-12-09 13:31:14 -0800 | [diff] [blame] | 1166 | DashingLineEffect::DashingLineEffect(GrColor color, |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 1167 | DashAAMode aaMode, |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 1168 | const SkMatrix& localMatrix, |
| 1169 | bool usesLocalCoords) |
joshualitt | e3ababe | 2015-05-15 07:56:07 -0700 | [diff] [blame] | 1170 | : fColor(color) |
| 1171 | , fLocalMatrix(localMatrix) |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 1172 | , fUsesLocalCoords(usesLocalCoords) |
joshualitt | 88c23fc | 2015-05-13 14:18:07 -0700 | [diff] [blame] | 1173 | , fAAMode(aaMode) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1174 | this->initClassID<DashingLineEffect>(); |
joshualitt | 71c9260 | 2015-01-14 08:12:47 -0800 | [diff] [blame] | 1175 | fInPosition = &this->addVertexAttrib(Attribute("inPosition", kVec2f_GrVertexAttribType)); |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 1176 | fInDashParams = &this->addVertexAttrib(Attribute("inDashParams", kVec3f_GrVertexAttribType)); |
| 1177 | fInRectParams = &this->addVertexAttrib(Attribute("inRect", kVec4f_GrVertexAttribType)); |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1178 | } |
| 1179 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1180 | GR_DEFINE_GEOMETRY_PROCESSOR_TEST(DashingLineEffect); |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1181 | |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 1182 | const GrGeometryProcessor* DashingLineEffect::TestCreate(GrProcessorTestData* d) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1183 | DashAAMode aaMode = static_cast<DashAAMode>(d->fRandom->nextULessThan(kDashAAModeCount)); |
| 1184 | return DashingLineEffect::Create(GrRandomColor(d->fRandom), |
| 1185 | aaMode, GrTest::TestMatrix(d->fRandom), |
| 1186 | d->fRandom->nextBool()); |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1187 | } |
| 1188 | |
| 1189 | ////////////////////////////////////////////////////////////////////////////// |
| 1190 | |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 1191 | static GrGeometryProcessor* create_dash_gp(GrColor color, |
senorblanco | f3c2c46 | 2015-04-20 14:44:26 -0700 | [diff] [blame] | 1192 | DashAAMode dashAAMode, |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 1193 | DashCap cap, |
joshualitt | df0c557 | 2015-08-03 11:35:28 -0700 | [diff] [blame] | 1194 | const SkMatrix& viewMatrix, |
joshualitt | b8c241a | 2015-05-19 08:23:30 -0700 | [diff] [blame] | 1195 | bool usesLocalCoords) { |
joshualitt | df0c557 | 2015-08-03 11:35:28 -0700 | [diff] [blame] | 1196 | SkMatrix invert; |
| 1197 | if (usesLocalCoords && !viewMatrix.invert(&invert)) { |
| 1198 | SkDebugf("Failed to invert\n"); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1199 | return nullptr; |
joshualitt | df0c557 | 2015-08-03 11:35:28 -0700 | [diff] [blame] | 1200 | } |
| 1201 | |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 1202 | switch (cap) { |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 1203 | case kRound_DashCap: |
joshualitt | df0c557 | 2015-08-03 11:35:28 -0700 | [diff] [blame] | 1204 | return DashingCircleEffect::Create(color, dashAAMode, invert, usesLocalCoords); |
joshualitt | 5224ba7 | 2015-02-03 15:07:51 -0800 | [diff] [blame] | 1205 | case kNonRound_DashCap: |
joshualitt | df0c557 | 2015-08-03 11:35:28 -0700 | [diff] [blame] | 1206 | return DashingLineEffect::Create(color, dashAAMode, invert, usesLocalCoords); |
egdaniel | f767e79 | 2014-07-02 06:21:32 -0700 | [diff] [blame] | 1207 | } |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1208 | return nullptr; |
commit-bot@chromium.org | 628ed0b | 2014-05-19 14:32:49 +0000 | [diff] [blame] | 1209 | } |
joshualitt | fa2008f | 2015-04-29 11:32:05 -0700 | [diff] [blame] | 1210 | |
| 1211 | ///////////////////////////////////////////////////////////////////////////////////////////////// |
| 1212 | |
| 1213 | #ifdef GR_TEST_UTILS |
| 1214 | |
bsalomon | abd30f5 | 2015-08-13 13:34:48 -0700 | [diff] [blame] | 1215 | DRAW_BATCH_TEST_DEFINE(DashBatch) { |
joshualitt | fa2008f | 2015-04-29 11:32:05 -0700 | [diff] [blame] | 1216 | GrColor color = GrRandomColor(random); |
| 1217 | SkMatrix viewMatrix = GrTest::TestMatrixPreservesRightAngles(random); |
| 1218 | bool useAA = random->nextBool(); |
| 1219 | bool msaaRT = random->nextBool(); |
| 1220 | |
| 1221 | // We can only dash either horizontal or vertical lines |
| 1222 | SkPoint pts[2]; |
| 1223 | if (random->nextBool()) { |
| 1224 | // vertical |
| 1225 | pts[0].fX = 1.f; |
| 1226 | pts[0].fY = random->nextF() * 10.f; |
| 1227 | pts[1].fX = 1.f; |
| 1228 | pts[1].fY = random->nextF() * 10.f; |
| 1229 | } else { |
| 1230 | // horizontal |
| 1231 | pts[0].fX = random->nextF() * 10.f; |
| 1232 | pts[0].fY = 1.f; |
| 1233 | pts[1].fX = random->nextF() * 10.f; |
| 1234 | pts[1].fY = 1.f; |
| 1235 | } |
| 1236 | |
| 1237 | // pick random cap |
| 1238 | SkPaint::Cap cap = SkPaint::Cap(random->nextULessThan(SkPaint::Cap::kCapCount)); |
| 1239 | |
| 1240 | SkScalar intervals[2]; |
| 1241 | |
| 1242 | // We can only dash with the following intervals |
| 1243 | enum Intervals { |
| 1244 | kOpenOpen_Intervals , |
| 1245 | kOpenClose_Intervals, |
| 1246 | kCloseOpen_Intervals, |
| 1247 | }; |
| 1248 | |
| 1249 | Intervals intervalType = SkPaint::kRound_Cap ? |
| 1250 | kOpenClose_Intervals : |
| 1251 | Intervals(random->nextULessThan(kCloseOpen_Intervals + 1)); |
| 1252 | static const SkScalar kIntervalMin = 0.1f; |
| 1253 | static const SkScalar kIntervalMax = 10.f; |
| 1254 | switch (intervalType) { |
| 1255 | case kOpenOpen_Intervals: |
| 1256 | intervals[0] = random->nextRangeScalar(kIntervalMin, kIntervalMax); |
| 1257 | intervals[1] = random->nextRangeScalar(kIntervalMin, kIntervalMax); |
| 1258 | break; |
| 1259 | case kOpenClose_Intervals: |
| 1260 | intervals[0] = 0.f; |
| 1261 | intervals[1] = random->nextRangeScalar(kIntervalMin, kIntervalMax); |
| 1262 | break; |
| 1263 | case kCloseOpen_Intervals: |
| 1264 | intervals[0] = random->nextRangeScalar(kIntervalMin, kIntervalMax); |
| 1265 | intervals[1] = 0.f; |
| 1266 | break; |
| 1267 | |
| 1268 | } |
| 1269 | |
| 1270 | // phase is 0 < sum (i0, i1) |
| 1271 | SkScalar phase = random->nextRangeScalar(0, intervals[0] + intervals[1]); |
| 1272 | |
| 1273 | SkPaint p; |
| 1274 | p.setStyle(SkPaint::kStroke_Style); |
| 1275 | p.setStrokeWidth(SkIntToScalar(1)); |
| 1276 | p.setStrokeCap(cap); |
| 1277 | |
| 1278 | GrStrokeInfo strokeInfo(p); |
| 1279 | |
| 1280 | SkPathEffect::DashInfo info; |
| 1281 | info.fIntervals = intervals; |
| 1282 | info.fCount = 2; |
| 1283 | info.fPhase = phase; |
| 1284 | SkDEBUGCODE(bool success = ) strokeInfo.setDashInfo(info); |
| 1285 | SkASSERT(success); |
| 1286 | |
| 1287 | return create_batch(color, viewMatrix, pts, useAA, strokeInfo, msaaRT); |
| 1288 | } |
| 1289 | |
| 1290 | #endif |